feat: add kafka and redis mongo env

Signed-off-by: Xinwei Xiong (cubxxw) <3293172751nss@gmail.com>

pkg/common/kafka/producer.go

@@ -1,17 +1,3 @@
-// Copyright © 2023 OpenIM. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
 package kafka
 
 import (
@@ -21,19 +7,17 @@ import (
 	"strings"
 	"time"
 
+	"github.com/IBM/sarama"
 	"github.com/OpenIMSDK/protocol/constant"
-	log "github.com/OpenIMSDK/tools/log"
+	"github.com/OpenIMSDK/tools/log"
 	"github.com/OpenIMSDK/tools/mcontext"
 	"github.com/OpenIMSDK/tools/utils"
-
 	"github.com/openimsdk/open-im-server/v3/pkg/common/config"
-
-	"github.com/IBM/sarama"
 	"google.golang.org/protobuf/proto"
 )
 
 const (
-	maxRetry = 10 // number of retries
+	maxRetry = 10 // Maximum number of retries for producer creation
 )
 
 var errEmptyMsg = errors.New("binary msg is empty")
@@ -45,62 +29,85 @@ type Producer struct {
 	producer sarama.SyncProducer
 }
 
-// NewKafkaProducer Initialize kafka producer.
+// NewKafkaProducer initializes a new Kafka producer.
 func NewKafkaProducer(addr []string, topic string) *Producer {
-	p := Producer{}
-	p.config = sarama.NewConfig()             // Instantiate a sarama Config
-	p.config.Producer.Return.Successes = true // Whether to enable the successes channel to be notified after the message is sent successfully
+	p := Producer{
+		addr:   addr,
+		topic:  topic,
+		config: sarama.NewConfig(),
+	}
+
+	// Set producer return flags
+	p.config.Producer.Return.Successes = true
 	p.config.Producer.Return.Errors = true
-	p.config.Producer.Partitioner = sarama.NewHashPartitioner // Set the hash-key automatic hash partition. When sending a message, you must specify the key value of the message. If there is no key, the partition will be selected randomly
 
-	var producerAck = sarama.WaitForAll // default: WaitForAll
-	switch strings.ToLower(config.Config.Kafka.ProducerAck) {
-	case "no_response":
-		producerAck = sarama.NoResponse
-	case "wait_for_local":
-		producerAck = sarama.WaitForLocal
-	case "wait_for_all":
-		producerAck = sarama.WaitForAll
-	}
-	p.config.Producer.RequiredAcks = producerAck
+	// Set partitioner strategy
+	p.config.Producer.Partitioner = sarama.NewHashPartitioner
 
-	var compress = sarama.CompressionNone // default: no compress
-	_ = compress.UnmarshalText(bytes.ToLower([]byte(config.Config.Kafka.CompressType)))
-	p.config.Producer.Compression = compress
+	// Configure producer acknowledgement level
+	configureProducerAck(&p, config.Config.Kafka.ProducerAck)
+
+	// Configure message compression
+	configureCompression(&p, config.Config.Kafka.CompressType)
+
+	// Get Kafka configuration from environment variables or fallback to config file
+	kafkaUsername := getEnvOrConfig("KAFKA_USERNAME", config.Config.Kafka.Username)
+	kafkaPassword := getEnvOrConfig("KAFKA_PASSWORD", config.Config.Kafka.Password)
+	kafkaAddr := getEnvOrConfig("KAFKA_ADDRESS", addr[0]) // Assuming addr[0] contains address from config
 
-	if config.Config.Kafka.Username != "" && config.Config.Kafka.Password != "" {
+	// Configure SASL authentication if credentials are provided
+	if kafkaUsername != "" && kafkaPassword != "" {
 		p.config.Net.SASL.Enable = true
-		p.config.Net.SASL.User = config.Config.Kafka.Username
-		p.config.Net.SASL.Password = config.Config.Kafka.Password
+		p.config.Net.SASL.User = kafkaUsername
+		p.config.Net.SASL.Password = kafkaPassword
 	}
-	p.addr = addr
-	p.topic = topic
+
+	// Set the Kafka address
+	p.addr = []string{kafkaAddr}
+
+	// Set up TLS configuration (if required)
 	SetupTLSConfig(p.config)
-	var producer sarama.SyncProducer
+
+	// Create the producer with retries
 	var err error
 	for i := 0; i <= maxRetry; i++ {
-		producer, err = sarama.NewSyncProducer(p.addr, p.config) // Initialize the client
+		p.producer, err = sarama.NewSyncProducer(p.addr, p.config)
 		if err == nil {
-			p.producer = producer
 			return &p
 		}
-		//TODO If the password is wrong, exit directly
-		//if packetErr, ok := err.(*sarama.PacketEncodingError); ok {
-		//if _, ok := packetErr.Err.(sarama.AuthenticationError); ok {
-		//	fmt.Println("Kafka password is wrong.")
-		//}
-		//} else {
-		//	fmt.Printf("Failed to create Kafka producer: %v\n", err)
-		//}
-		time.Sleep(time.Duration(1) * time.Second)
+		time.Sleep(1 * time.Second) // Wait before retrying
 	}
+
+	// Panic if unable to create producer after retries
 	if err != nil {
-		panic(err.Error())
+		panic("Failed to create Kafka producer: " + err.Error())
 	}
-	p.producer = producer
+
 	return &p
 }
 
+// configureProducerAck configures the producer's acknowledgement level.
+func configureProducerAck(p *Producer, ackConfig string) {
+	switch strings.ToLower(ackConfig) {
+	case "no_response":
+		p.config.Producer.RequiredAcks = sarama.NoResponse
+	case "wait_for_local":
+		p.config.Producer.RequiredAcks = sarama.WaitForLocal
+	case "wait_for_all":
+		p.config.Producer.RequiredAcks = sarama.WaitForAll
+	default:
+		p.config.Producer.RequiredAcks = sarama.WaitForAll
+	}
+}
+
+// configureCompression configures the message compression type for the producer.
+func configureCompression(p *Producer, compressType string) {
+	var compress sarama.CompressionCodec = sarama.CompressionNone
+	compress.UnmarshalText(bytes.ToLower([]byte(compressType)))
+	p.config.Producer.Compression = compress
+}
+
+// GetMQHeaderWithContext extracts message queue headers from the context.
 func GetMQHeaderWithContext(ctx context.Context) ([]sarama.RecordHeader, error) {
 	operationID, opUserID, platform, connID, err := mcontext.GetCtxInfos(ctx)
 	if err != nil {
@@ -111,43 +118,57 @@ func GetMQHeaderWithContext(ctx context.Context) ([]sarama.RecordHeader, error)
 		{Key: []byte(constant.OpUserID), Value: []byte(opUserID)},
 		{Key: []byte(constant.OpUserPlatform), Value: []byte(platform)},
 		{Key: []byte(constant.ConnID), Value: []byte(connID)},
-	}, err
+	}, nil
 }
 
+// GetContextWithMQHeader creates a context from message queue headers.
 func GetContextWithMQHeader(header []*sarama.RecordHeader) context.Context {
 	var values []string
 	for _, recordHeader := range header {
 		values = append(values, string(recordHeader.Value))
 	}
-	return mcontext.WithMustInfoCtx(values) // TODO
+	return mcontext.WithMustInfoCtx(values) // Attach extracted values to context
 }
 
+// SendMessage sends a message to the Kafka topic configured in the Producer.
 func (p *Producer) SendMessage(ctx context.Context, key string, msg proto.Message) (int32, int64, error) {
 	log.ZDebug(ctx, "SendMessage", "msg", msg, "topic", p.topic, "key", key)
-	kMsg := &sarama.ProducerMessage{}
-	kMsg.Topic = p.topic
-	kMsg.Key = sarama.StringEncoder(key)
+
+	// Marshal the protobuf message
 	bMsg, err := proto.Marshal(msg)
 	if err != nil {
 		return 0, 0, utils.Wrap(err, "kafka proto Marshal err")
 	}
 	if len(bMsg) == 0 {
 		return 0, 0, utils.Wrap(errEmptyMsg, "")
 	}
-	kMsg.Value = sarama.ByteEncoder(bMsg)
+
+	// Prepare Kafka message
+	kMsg := &sarama.ProducerMessage{
+		Topic: p.topic,
+		Key:   sarama.StringEncoder(key),
+		Value: sarama.ByteEncoder(bMsg),
+	}
+
+	// Validate message key and value
 	if kMsg.Key.Length() == 0 || kMsg.Value.Length() == 0 {
 		return 0, 0, utils.Wrap(errEmptyMsg, "")
 	}
-	kMsg.Metadata = ctx
+
+	// Attach context metadata as headers
 	header, err := GetMQHeaderWithContext(ctx)
 	if err != nil {
 		return 0, 0, utils.Wrap(err, "")
 	}
 	kMsg.Headers = header
+
+	// Send the message
 	partition, offset, err := p.producer.SendMessage(kMsg)
-	log.ZDebug(ctx, "ByteEncoder SendMessage end", "key ", kMsg.Key, "key length", kMsg.Value.Length())
 	if err != nil {
 		log.ZWarn(ctx, "p.producer.SendMessage error", err)
+		return 0, 0, utils.Wrap(err, "")
 	}
-	return partition, offset, utils.Wrap(err, "")
+
+	log.ZDebug(ctx, "ByteEncoder SendMessage end", "key", kMsg.Key, "key length", kMsg.Value.Length())
+	return partition, offset, nil
 }

pkg/common/kafka/util.go

@@ -15,6 +15,8 @@
 package kafka
 
 import (
+	"os"
+
 	"github.com/IBM/sarama"
 
 	"github.com/openimsdk/open-im-server/v3/pkg/common/config"
@@ -33,3 +35,12 @@ func SetupTLSConfig(cfg *sarama.Config) {
 		)
 	}
 }
+
+// getEnvOrConfig returns the value of the environment variable if it exists,
+// otherwise, it returns the value from the configuration file.
+func getEnvOrConfig(envName string, configValue string) string {
+	if value, exists := os.LookupEnv(envName); exists {
+		return value
+	}
+	return configValue
+}